Like our teeth, they go yellow and can rot. Plaque also builds up causing infection and gum disease.
You could walk dogs, or brush the pets and trim their toenails, brush their teeth, if they have a cage, clean it, you could take care of pets while people are on vacation, or you could help out the older people by feeding them, grooming, walking, etc.
You can't.
No, if your dog swallows it, he will get sick. This is also a bad idea as peroxide irritates and can sometimes burn the mucus membranes in the mouth. You should only brush a pet's teeth with a veterinarian approved pet toothpaste using a pet toothbrush. Many pets never need their teeth brushed at all, if a significant part of their diet is hard dry food.
To clean your ferrets teeth, use a products made for felines - either a bristle brush or a finger toothbrush (gauze in another option) and toothpaste made for pets. You start slowly letting your ferret taste the toothpaste, massaging the mouth and cheeks and slowly progress to his teeth and gums with your fingers, then proceed with the brush. You may have to scruff him or get someone to help you. Refer to link below for more detailed information.
You brush and groom them
the tooth fairy does have pets dog teeth are the tooth fairy's pets
no he dont have any pets
they dont have pets... they have sex slaves
you dont
You can get all sorts of grooming equipment at pet stores such as pets at home. At pets at home you should be able to get a puppy kit and a puppy brush. If not then get medium nylon bristle brush, slicker brush, medium tooth comb and a flea comb. or you could just take her/him to your nearest grooming parlor where they will do everything.
no i dont think there is a spa for my sims 2 pets.
You dont marry your pets, you just mate them.